Senior Engineer (Applied AI)

Ro; York and North Yorkshire; On-site; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Medical, dental, and vision

Equity for all team members

Flexible time off

Paid parental leave

Office snacks and lunches

Gym, learning, and development stipnds

Job summary

Ro is building a team focused on shipping LLM-powered products across the patient experience, clinical operations, and internal tooling. We’re hiring a Senior Engineer, Applied AI to join a new team we’re building from the ground up alongside a Senior AI Lead and an Engineering Manager.

You’ll own AI features from prototype through production and spend as much time improving workflows with clinical operators as writing code. Strong Python and backend skills are essential.

Qualifications

• 5+ years building production software.

Responsibilities

• Own AI features from prototype through production.
• Build orchestration layers, prompts, evaluations, and retrieval systems.
• Develop evaluation infrastructure and quality metrics.
• Design observability systems for latency, cost, and model behavior.
• Raise engineering standards through reviews and mentorship.
• Collaborate with clinical teams to understand workflows.

Skills

Python

Backend

AI APIs

LangChain

LangGraph

AgentCore

RAG

Vector DB

Evaluation

Observability

Prompting

Tools

LangSmith

Braintrust

Arize Phoenix

Job description

• Ro is building a team focused on shipping LLM-powered products across the patient experience, clinical operations, and internal tooling
• We’re hiring a Senior Engineer, Applied AI to join a new team we’re building from the ground up alongside a Senior AI Lead and an Engineering Manager
• You’ll own AI features from prototype through production and spend as much time improving workflows with clinical operators as writing code
• Most of your work will involve building orchestration layers, prompts, evaluations, retrieval systems, and tooling that make LLMs reliable enough for real-world healthcare operations
• Design, build, and ship production LLM powered features end-to-end
• Build the AI application layer, including prompt orchestration, tool calling, retrieval (RAG), embeddings, agent workflows, and structured outputs
• Develop evaluation infrastructure, including regression suites, LLM-as-a-judge evaluations, synthetic datasets, human review workflows, and quality metrics that catch regressions before users do
• Design observability systems that measure accuracy, latency, cost, hallucination rates, and model behavior in production
• Build safety and reliability guardrails that ensure AI systems meet quality, compliance, and operational requirements
• Evaluate and integrate third‑party tools, including orchestration frameworks, evaluation platforms, vector databases, and model providers; and make pragmatic build-versus-buy decisions
• Raise engineering standards across the team through technical leadership, code reviews, mentorship, and thoughtful system design
• Sit with EHR operators, Patient Advocates, and clinical teams to understand the workflows you’re automating
• Prototype quickly, ship early, measure outcomes, and iterate based on real-world usage

Benefits

• Medical, dental, and vision membership
• Equity for all team members
• Flexible time off
• Paid parental leave, and flexible work arrangement
• Well‑stocked office with snacks and bi‑weekly free lunches
• Gym, learning, and development stipends

5+ years building production software, with at least 1–2 years building and deploying LLM-powered applications in production (or equivalent depth through substantial side projects or open‑source work)

You’ve shipped AI features that served real users, and you can clearly articulate how you measured quality, reliability, latency, cost, and business impact

Comfortable using AI‑assisted development tools throughout the software development lifecycle

You have strong product instincts and thrive in ambiguous environments, translating operational problems into technical solutions without relying on detailed specifications

Strong Python engineer with experience building backend services and integrating modern AI APIs and frameworks

Bonus: Experience with orchestration frameworks (LangChain, LangGraph, AgentCore), RAG architectures, vector databases, prompt/version management, and evaluation or observability platforms (e.g., LangSmith, Braintrust, Arize Phoenix)